The G-type horizontal single-screw pump, also known as a horizontal progressive cavity pump, is a high-performance positive displacement pump designed for continuous and stable fluid transfer. It is especially suitable for handling viscous, abrasive, or shear-sensitive fluids in industrial environments. The pump operates on the principle of a progressive cavity, where a single helical rotor rotates inside a double-helical stator, forming sealed cavities that move the medium from the suction end to the discharge end smoothly and without pulsation.